From fc442bdbe6d8113caf25a4dd4b0e8e4dc8d3913a Mon Sep 17 00:00:00 2001 From: Behdad Esfahbod Date: Thu, 11 Aug 2011 08:33:23 +0200 Subject: [PATCH] Cleanup gatomic checks --- configure.ac | 39 +++++++++++++++++---------------------- 1 file changed, 17 insertions(+), 22 deletions(-) diff --git a/configure.ac b/configure.ac index bb030480b..8fbc4f580 100644 --- a/configure.ac +++ b/configure.ac @@ -2480,25 +2480,11 @@ if test "$glib_cv_monotonic_clock" = "yes"; then fi -dnl ******************************** -dnl *** g_atomic_* tests for gcc *** -dnl ******************************** +dnl ************************ +dnl *** g_atomic_* tests *** +dnl ************************ AC_MSG_CHECKING([whether to use assembler code for atomic operations]) - -glib_cv_gcc_has_builtin_atomic_operations=no -if test x"$GCC" = xyes; then - AC_MSG_CHECKING([whether GCC supports built-in atomic intrinsics]) - AC_TRY_LINK([], - [int i; - __sync_synchronize (); - __sync_bool_compare_and_swap (&i, 0, 1); - __sync_fetch_and_add (&i, 1); - ], - [glib_cv_gcc_has_builtin_atomic_operations=yes], - [glib_cv_gcc_has_builtin_atomic_operations=no]) - - AC_MSG_RESULT($glib_cv_gcc_has_builtin_atomic_operations) case $host_cpu in i386) AC_MSG_RESULT([none]) @@ -2595,11 +2581,20 @@ if test x"$GCC" = xyes; then glib_memory_barrier_needed=yes ;; esac -else - if test $glib_native_win32 = yes; then - # For Windows but not using gcc. No barriers needed then either. - glib_memory_barrier_needed=no - fi + +glib_cv_gcc_has_builtin_atomic_operations=no +if test x"$GCC" = xyes; then + AC_MSG_CHECKING([whether GCC supports built-in atomic intrinsics]) + AC_TRY_LINK([], + [int i; + __sync_synchronize (); + __sync_bool_compare_and_swap (&i, 0, 1); + __sync_fetch_and_add (&i, 1); + ], + [glib_cv_gcc_has_builtin_atomic_operations=yes], + [glib_cv_gcc_has_builtin_atomic_operations=no]) + + AC_MSG_RESULT($glib_cv_gcc_has_builtin_atomic_operations) fi AM_CONDITIONAL(HAVE_GCC_BUILTINS_FOR_ATOMIC_OPERATIONS,